The Production and Spatial Heterogeneity of Litterfall in the Mixed Broadleaved―Korean Pine Forest of Xiaoxing`an Mountains, China

초록

Literfal has been recognized an important part of the forest ecosystem production, playing amajor pathway in energy flow and nutrient cycling through the ecosystem. This study was carried out toexamine the quantity and components, temporal variation, and spatial heterogeneity of the litterfall in themixed broadleaved-Korean pine forest. The data were colected from the 9ha permanent experimental plot,of which on the center area, i.e. 150 m. 150.m, the total number of 319 circular litterfal traps with thesize of 0.5 m2 were established to collect falling literfall. The results showed that the anual amount oflitterfall was totalized 3,03.7.kg/ha, ocupying broad-leaves of 39.3%, conifer-leaves of 29.5%, others of18.5%, branches of 10.4%, and seds of 2.3%. The peak point of the literfall production was made at theend of September, proportionating 32.2% of total amount. The analysis of semivariogram revealed the29.1 m. The result of proportion.(C/[Co+C]) showed that spatial heterogeneity of autocorrelation in totalspatial heterogeneity were from 97.0% to 100%. The relatively heavy branches and others had significantdiferences in literfall production betwen the areas of canopy gap and closed canopy in the 95%probability level, but the other components did not show statistical diferences.

키워드